@misc{indiciae49ca168d6864, title = {Stopcock for use during extracapsular cataract extraction.}, author = {D L Williams and D Wallenthis}, year = {1982}, doi = {10.1016/0002-9394(82)90015-0}, url = {https://pubmed.ncbi.nlm.nih.gov/7148950/}, note = {Source identifier: 7148950} }